Royal Blue (disambiguation)
# Royal Blue (disambiguation)

Royal blue is a colour.

Royal Blue may also refer to:

* Royal Blue (train), a passenger train between New York City and Washington, D.C., United States
* Royal Blue (yacht), a maxi yakmn

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* Royal Blue, Tennessee, a community in Campbell County, Tennessee, United States
* Royal Blue (pigeon), an RAF messenger pigeon of World War II
* Myscelia cyaniris or royal blue, a brush-footed butterfly of Central and northern South America
* Orachrysops regalis or royal blue, a butterfly in the family Lycaenidae found in South Africa
